<template>
  <div class="login-container">
    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
      auto-complete="on"
      label-position="left"
    >
      <div class="title-container">
        <h3 class="title">
          <img src="@/assets/common/login-logo.png" alt="" />
        </h3>
      </div>

      <el-form-item prop="mobile">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="mobile"
          v-model="loginForm.mobile"
          placeholder="请写手机号"
          name="mobile"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="请写密码"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon
            :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"
          />
        </span>
      </el-form-item>

      <el-button
        class="loginBtn"
        :loading="loading"
        type="primary"
        style="width: 100%; margin-bottom: 30px"
        @click.native.prevent="handleLogin"
        >登录，</el-button
      >

      <div class="tips">
        <span style="margin-right: 20px">username是13800000002</span>
        <span> password是123456</span>
      </div>
    </el-form>
  </div>
</template>

<script>
import { handleValidateMobile, validUsername } from "@/utils/validate";

export default {
  name: "Login",
  data() {
    const validatorMobile = (rule, value, callback) => {
      console.log(value); //value值是输入的内容

      if (handleValidateMobile(value)) {
        console.log(handleValidateMobile(value));
        //校验通过直接调用callback
        callback();
      } else {
        console.log(handleValidateMobile(value));
        callback(new Error("请写正确的手机号"));
      }
    };
    // const validateUsername = (rule, value, callback) => {
    //   if (!validUsername(value)) {
    //     // 校验失败
    //     callback(new Error("Please enter the correct user name"));
    //   } else {
    //     // 校验成功
    //     callback();
    //   }
    // };
    // const validatePassword = (rule, value, callback) => {
    //   if (value.length < 6) {
    //     callback(new Error("The password can not be less than 6 digits"));
    //   } else {
    //     callback();
    //   }
    // };
    return {
      loginForm: {
        // username: 'admin',

        // mobile: "admin",
        // password: "111111",
        mobile: "13800000002",
        password: "123456",
      },
      loginRules: {
        // 校验四步骤不能少1数据对象2校验规则3校验数据的key，prop 4formdata
        // username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        mobile: [
          { required: true, trigger: "blur", messge: "请填写手机号" },
          //自定义校验规则 用validator属性转移到validatorMobile这个函数上
          { validator: validatorMobile, trigger: "blur" },
        ],
        password: [
          { required: true, trigger: "blur" },
          {
            min: 6,
            max: 16,
            message: "密码长度应该在6到16位之间",
            //失去焦点才会显示message,以上同理
            trigger: "blur",
          },
        ],
      },
      loading: false,
      passwordType: "password",
      redirect: undefined,
    };
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true,
    },
  },
  methods: {
    showPwd() {
      if (this.passwordType === "password") {
        this.passwordType = "";
      } else {
        this.passwordType = "password";
      }
      this.$nextTick(() => {
        this.$refs.password.focus();
      });
    },
    // handleLogin() {
    //表单校验
    // this.$refs.loginForm.validate((valid) => {
    //   if (valid) {
    //     //valid是校验的结果true or false
    //     this.loading = true;
    //     this.$store
    //       .dispatch("user/login", this.loginForm)
    //       .then(() => {
    //         this.$router.push({ path: this.redirect || "/" });
    //         this.loading = false;
    //       })
    //       .catch(() => {
    //         this.loading = false;
    //       });
    //   } else {
    //     console.log("error submit!!");
    //     return false;
    //   }
    // });
    // },
    //以上是写回调函数的校验形式，我们这里要用async await
    async handleLogin() {
      //loginForm是form表单的实例，是上面ref绑定给了el-form得来的
      await this.$refs.loginForm.validate();
      //转圈圈
      this.loading = true;
      //需要trycatch是因为若请求失败也会loading，但我们只想要请求成功有loading即可
      try {
        //调用接口 接口在vuex的actions里
        await this.$store.dispatch("user/loginAction", this.loginForm);
        //跳转首页
        this.$router.push("/");
        //请求成功则转圈圈关闭
        this.loading = false;
      } catch (e) {
        //请求失败则转圈圈关闭
        this.loading = false;
      }
    },
    //此时别忘记在module/user.js中加import { login } from "@/api/user";
    //这里404因为utils/request.js里的request里没写东西
  },
};
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
// $light_gray:#fff;
$light_blue: #68b0fe; // 将输入框颜色改成蓝色
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  //  如需要在样式表中使用**@别名的时候，需要在@前面加上一个~**符号，否则不识别
  background-image: url("~@/assets/common/login.jpg"); // 设置背景图片
  background-position: center; // 将图片位置设置为充满整个屏幕
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_blue;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    background: rgba(255, 255, 255, 0.7); // 输入登录表单的背景色
    border: 1px solid rgba(255, 255, 255, 0.1);
    // background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }

  .el-form-item__error {
    color: #fff;
  }

  .loginBtn {
    background: #407ffe;
    height: 64px;
    line-height: 32px;
    font-size: 24px;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
